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Q: The organisms shown here secrete silica in their frustules?
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What are the two types of variation shown by living organisms?

nonsense ,dum and crazy are the two types variation shown by living organisms.


What can cause a large amount of diatom type bacteria to grow in a lake?

Research has shown that diatom is something in water that requires silica for growth. Therefore if diatom is growing in a lake the water must also have silica in order for it to grow. This is not common in the open ocean due to lack of silica.


How did the knowledge of evolution affect the way organisms are classified?

The older morphological methods were, in many cases, shown to be wrong because there was no real evolutionary connection. And in other instances the evolutionary connection was shown for organisms that were morphologically quite dissimilar.


Why are one celled organism not shown?

one singled celled organism is an amoeba. usally single celled organisms are surrounded by water


Why are contractile vacuoles more likely found in fresh water organisms than in salt water organisms?

Well According To The Scientific Theory The Scientist Are Figuring It Out. The Answer Will Be Shown In October 31, 2015. HALLOWEEN. BOO!


Why do you need the lemur leaf frog?

Lemur tree frogs are an endangered species. These frogs could be important to medical research because they secrete peptides which have been shown to have possible anti-cancer, anti-diabetic, and anti-bacterial properties.


What do fossil forms of evolution show?

The transition of phyla of organisms over time. That is the great strength of the fossil record; evolution shown in the sedimentary rock.


How does this realization impact to your life in screen the UV out?

UV-B radiation has been shown to be harmful to living organisms, damaging DNA, proteins, lipids and membranes.


What is the biggest change in evolution?

Probably evolutionary development, evo devo. This reanimated division of biology has shown us that the genetic endowment of organisms is remarkably the same, only differences in control and length of gene expression separates such widely variant organisms, such as flies and humans.


What is terrestrial adaptation?

Terrestrial adaptations are exhibited by the plants and animals living in land habitats. As there are varied types of land habitats, the adaptations shown by organisms also are of diverse kinds.


Can ozone hurt humans?

yes Ozone has been shown to exacerbate asthma symptoms. It also does the same sort of damage to the breathing structures of all organisms that exchange gases to / from the atmosphere.


How do ocean currents affect organisms?

It depends on how fast the current is moving and what temperature it is.Thier is a good video on youtube that tells you all about this stuff, but it is shown in th game minecraft.